Echinacea tennesseensis 'Rocky Top'

RHS Plant Profile

coneflower 'Rocky Top'

RHS

Synonyms

Echinacea 'Rocky Top Hybrids', Echinacea 'Rocky Top', Echinacea purpurea 'Rocky Top', Echinacea tennesseensis 'Rocky Top Hybrids'

Herbaceous Perennial

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A clump-forming perennial to 70cm tall with narrow, dark green leaves up to 12cm long. In summer, flowerheads comprising upwardly-curved pink ray florets surrounding a dark central cone are held on erect stems

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: 0.5-1 metres

Growing Conditions

Chalk Loam Sand

Moisture: Moist but well–drained or Well–drained
pH: Alkaline or Neutral

Position

Full sun Partial shade

Aspect: West–facing or East–facing or South–facing
Exposure: Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H5

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Asteraceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Bushy
Genus: Echinacea are erect, clump-forming rhizomatous perennials with simple or pinnately lobed leaves and solitary, long-stalked daisies with prominent conical central disks and often drooping ray florets; attractive to butterflies
Name Status: Accepted

How to Grow

Cultivation

Grows best in a well-drained soil in full sun

Propagation

Propagate by division in spring or autumn. Propagate by root cuttings from late autumn to early winter

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Prairie planting
Wildlife gardens
Cut flowers
Flower borders and beds

Pruning

Cut back stems as the blooms fade to encourage further flower production

Pests

Generally pest-free

Diseases

Generally disease-free